Remove the cap and red stopper from your bottle of Prep & Remove Lacquer Remover or Strengthening Lacquer Remover and replace with pump. Once pump is screwed securely onto the bottle unlock the pump by turning in a clockwise direction until you feel it give a little. Once unlocked, open the clear top lid, place a cotton round over the well of the pump and push down to saturate cotton with remover. To lock pump, turn counter-clockwise then push down to make sure it is no longer in the unlocked position.